Type-writing machine.



PATENTED AUG. 13, 1907. G. W. DONNI'NG. v TYPE WRITING MACHINE;APPLICATION FILED SEPT. 23. 1901.

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PATENTED AUG 13, 1907.

G. W. DONNING. 'T YPE WRITING MACHINE.

APPLICATION FILED SEPT. 23.1901.

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sea

m w a UNITED STATES PATENT OFFICE.

GEORGE W. DONNING, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO HARRY-T.AMBROSE,

OF ORANGE, NEW JERSEY.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Aug. 13, 1907.

To all whom it may concern:

Be it known that I, GEORGE W. DONNING, a citizen of the United States,residing at East Orange, in the c'ountyoi Essex and State of NewJersey,have invented certain new and useful Improvements in Type-WritingMachines; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to improvements in the method of mountingspindles for carrying paper or carbon rolls used in connection withtypewriting machines, particularly that class oi'typewritors known asflat platen or commercial machines.

The invention may be said to reside in a novel form of locking memberfor preventing accidental removal of the spindles from slotted hearings,in which said spindles are mounted for convenience of access.

In the drawings: Figure l is a perspective view of the basal portion ofa flat platen machine, associated with which is a series of paper rollsand their supporting spindles; Fig. 2 is a front elevation of the rollsand spindles mounted in supporting standards; Fig. 3 is a side view ofone 01' the standards, showing the slotted bearings; and Fig. 4 is aside view of a locking plate used in connection therewith.

Referring to these drawings, A indicates the flat platen of atypewriter, and B longitudinal track rails upon which travels thewriting mechanism, not illustrated.

For the purpose of delivering paper and carbon sheets over the platen,rolls may be suitably arranged. A carbon roll G has been shown at oneside of the platen, and a series of paper rolls D, one above the other,at the rear of the platen. These rolls D are carried by spindles O, withwhich may cooperate suitable collars E for the proper retention of therolls.

The spindles are to be supported in suitable members, and these havebeen illustrated as constituting upright standards H, through which theends of the spindles pass. Without one of the standards, the ends of thespindles are conveniently provided with gears h which may mesh withintermediate gears 7a, or other. devices may be resorted to forprocuring any desired mode of rotation of the spindles and rolls.

The hearings in one or both of the standards maybe slotted forfacilitating the positioning and shifting of the spindles. 'In Fig. 3 isillustrated one of the standards provided with horizontally slottedbearings F, within which the spindles may readily be inserted. In 0011-5Q nection with such bearings, there is to be employed a locking plete,or plates 1?, to prevent accidental removal of the spindles. It isobvious that there might be a separate locking plate for each spindleend; but it is preferred, as shown in Fig. 4, to provide a single locking plate, having as many retaining slots G as there are slottedbearings. These slots G are curved, inclined, or otherwise irregular,preierably'curved as shown, so that when the'locking plate is applied tothe spindles adjacent one of the standards H the side walls of the slotsG will form abarrier closing the open end of the slotted bearings, aswill be readily understood.

Having thus fully described my invention, what I claim as new and desireto secure by Lettersrliatent is:

1. In a typewriter, the combination with a platen, and a spindle forsupplying a paper or carbon web thereovei; of a standard provided with aslotted bearing in which one end of the spindle is journnled. and alocking plate having a curved or angled slot adapted to slip over theportion of the spindle entering said slotted bearing to prevent accidental removal of the spindle therefrom, said slot being extended upwardfrom its mouth at an angle to the slotted bearing.

2. In a typewriter, the combination with a platen. and a spindle forsupplying a paper or carbon web thereto; of opposed standards in whichthe spindle is journaled. the bearing of one of said standards beingslotted. and a locking plate adapted to be positioned adjacent saidstandard and being provided with a curved or angled slot con structod toreceive the spindle and lock the same against displacement from theslotted bearing. said slot being extended upward from its mouth at anangle to the slotted bearing.

3. In a typewriter, the combination with a platen, and a series ofspindles for delivering a plurality of paper or carbon webs, or both, tothe platen: of a standard having :1 series of slotted bearings in whichthe adjacent ends of said spindles are journaled, and a locking platehaving a series of curved or angled slots constructed to fitsimultaneously over the portions of the spindles entering said bearings.said slots being extended upward from their mouths at an angle to theslotted bearings. I

in testimony'whereof, I aiiix my signature, in the presence of twosubscribing witnesses. I GEORGE W. DONNING.

Witnesses T. .VVELDEN, DAVID H. LITTER.

